Hi:
Excel and row heights can be tricky. If you search for previous forum postings, this has come up before. I believe the relevant sub-option is the row_heights suboption -- however, it only has a way to set a row height for ALL the table cells -- not just one row or one column.
I don't know whether this is an instance that a CALL DEFINE in PROC REPORT would be able to specify a height for a specific row or not. But perhaps if you play around with row_heights and the autofit_height sub-options, you will get close to what you want.
cynthia